This article is from the Mac Programming FAQ, by Jon Watte h+@austin.metrowerks.com with numerous contributions by others.
Good question. Apple, in the guise of Jim Luther of Mac Developer
Technical Support, has written a library called MoreFiles, which not
only provides a high-level interface to low-level file stuff, but
provides FSSpec glue for Systems below 7. MoreFiles is available on the
Developer CD's (see above) and also at Appple's developer ftp site.
 
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